EP 2200323 A4 20120314 - MOVING IMAGE ENCODER AND MOVING IMAGE DECODER
Title (en)
MOVING IMAGE ENCODER AND MOVING IMAGE DECODER
Title (de)
KODIERER FÜR BEWEGLICHE BILDER UND DEKODIERER FÜR BEWEGLICHE BILDER
Title (fr)
CODEUR D'IMAGE ANIMÉE ET DÉCODEUR D'IMAGE ANIMÉE
Publication
Application
Priority
- JP 2008065639 W 20080901
- JP 2007246852 A 20070925
- JP 2007280402 A 20071029
Abstract (en)
[origin: EP2200323A1] The encoding efficiency when a plurality of reference blocks are used to generate prediction blocks for encoding is improved. A moving image encoder performs inter-picture predictive encoding to encode a difference value from a block to be encoded by generating a prediction image of the block to be encoded by using a plurality of reference images extracted from an encoded frame. The moving image encoder comprises a prediction method candidate generating portion 120, a prediction image generating portion and a variable-length encoding portion 108. The prediction method candidate generating portion 120 generates candidates of a prediction method based on predetermined information related to the block to be encoded, and the prediction image generating portion generates the prediction image of the block to be encoded based on the generated candidates of the prediction method. The variable-length encoding portion 108 encodes the prediction method used for generating the prediction image when the inter-picture predictive encoding is performed by using the generated prediction image if the number of the candidates of the prediction method generated by the prediction method candidate generating portion 120 is two or more.
IPC 8 full level
H04N 7/32 (2006.01); H04N 7/26 (2006.01); H04N 7/50 (2006.01)
CPC (source: EP US)
H04N 19/105 (2014.11 - EP US); H04N 19/13 (2014.11 - EP US); H04N 19/147 (2014.11 - EP US); H04N 19/176 (2014.11 - EP US); H04N 19/196 (2014.11 - EP US); H04N 19/197 (2014.11 - EP US); H04N 19/463 (2014.11 - EP US); H04N 19/61 (2014.11 - EP US)
Citation (search report)
- [XA] WO 2004008762 A1 20040122 - THOMSON LICENSING SA [FR], et al
- [XA] BOYCE J M: "Weighted prediction in the H.264/MPEG AVC video coding standard", PROCEEDINGS / 2004 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS : MAY 23 - 26, 2004, SHERATON VANCOUVER WALL CENTRE HOTEL, VANCOUVER, BRITISH COLUMBIA, CANADA, IEEE OPERATIONS CENTER, PISCATAWAY, NJ, 23 May 2004 (2004-05-23), pages III - 789, XP010719383, ISBN: 978-0-7803-8251-0
- [XA] PENG YIN ET AL: "Localized Weighted Prediction for Video Coding", CONFERENCE PROCEEDINGS / IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) : MAY 23 - 26, 2005, INTERNATIONAL CONFERENCE CENTER, KOBE, JAPAN, IEEE SERVICE CENTER, PISCATAWAY, NJ, 23 May 2005 (2005-05-23), pages 4365 - 4368, XP010816640, ISBN: 978-0-7803-8834-5, DOI: 10.1109/ISCAS.2005.1465598
- See references of WO 2009041215A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2200323 A1 20100623; EP 2200323 A4 20120314; JP WO2009041215 A1 20110120; US 2010195723 A1 20100805; WO 2009041215 A1 20090402
DOCDB simple family (application)
EP 08832839 A 20080901; JP 2008065639 W 20080901; JP 2009534251 A 20080901; US 67896308 A 20080901